<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th>
            <input type="checkbox" v-model="all" />
            <span>全选</span>
          </th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="(item, index) in goodList" :key="index">
          <th><input type="checkbox" v-model="item.checked" /></th>
          <th>{{ item.name }}</th>
          <th>{{ item.price }}</th>
          <th>
            <button @click="subFn(index)" :disabled="item.num <= 1">-</button
            >{{ item.num }}<button @click="addFn(index)">+</button>
          </th>
          <th>{{ Price[index] }}</th>
          <th><button @click="delFn(item.name)">删除</button></th>
        </tr>
      </tbody>
      <tfoot>
        <tr>
          <td>合计:</td>
          <td colspan="5">{{ allPrice }}</td>
        </tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import { mapState, mapMutations,mapGetters } from 'vuex'
export default {
  computed: {
    ...mapState(['goodList', 'allCheck']),
    ...mapGetters(['Price','allPrice']),
    all: {
      set(val) {
        this.goodList.forEach((item) => (item.checked = val))
      },
      get() {
        return this.goodList.every((item) => item.checked)
      },
    },
  },
  methods: {
    ...mapMutations(['subCount', 'addCount']),
    subFn(i) {
      this.$store.commit('subCount', i)
    },
    addFn(i) {
      this.$store.commit('addCount', i)
    },
    delFn(uname) {
      this.$store.commit('delGood', uname)
    },
  },
  //全选
}
</script>

<style></style>
